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New developments in quaternion estimation from vector observations
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Markley Sr., F. Landis Mortari, Daniele |
| Copyright Year | 2000 |
| Description | This paper contains a critical comparison of estimators minimizing Wahba's loss function. Some new results are presented for the QUaternion ESTimator (QUEST) and EStimators of the Optimal Quaternion (ESOQ and ESOQ2) to avoid the computational burden of sequential rotations in these algorithms. None of these methods is as robust in principle as Davenport's q method or the Singular Value Decomposition (SVD) method, which are significantly slower. Robustness is only an issue for measurements with widely differing accuracies, so the fastest estimators, the modified ESOQ and ESOQ2, are well suited to sensors that track multiple stars with comparable accuracies. More robust forms of ESOQ and ESOQ2 are developed that are intermediate in speed. |
| File Size | 1033540 |
| File Format | |
| Language | English |
| Publisher Date | 2000-03-21 |
| Access Restriction | Open |
| Subject Keyword | Astrodynamics Satellite Guidance Attitude Inclination Algorithms Quaternions Vector Analysis Star Trackers Estimating Probability Distribution Functions Matrices Mathematics Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
